ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,900, issued on June 17, was assigned to TOHOKU UNIVERSITY (Sendai, Japan).
"Acoustic wave device" was invented by Michio Kadota (Sendai, Japan) and Shuji Tanaka (Sendai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An acoustic wave device that can achieve a good characteristic in a superhigh frequency band of 6 GHz or higher by using an overtone. The device includes: a piezoelectric substrate; an electrode provided in such a way as to be in contact with the piezoelectric substrate; and an acoustic multilayer film provided in such a way as to be in contact with the piezoelectric substrate and/or the electrode and is configured to use an overt...